First, the specifics 1.) Model Number ? t-mobile g1 2.) Firmware Version ? 1.5 3.) Baseband Version ? 62.50s.20.17h_22.214.171.124I 4.) Kernel Version ? 2.6.27-00393-g6607056 san@sandroid #1 5.) Build Number ? crb43 Also do you have a T-Mobile Data plan on your PayAsYouGo or FlexPay Plan? I have a regular plan, data plan on it. Carrier ? t Mobile Country you are using your phone in ? US (cali) Is the phone SIM registered in T-Mobile as the Correct phone? i am not sure about this. i will call them shortly and find out. now on to my issues. first off, thank you for reading. 2nd, i really love this phone WHEN IT IS WORKING and would like to try to find out what is wrong. Problems: Reboots or goes to black screen and requires a battery pop. this happens while: texting, doing video, being on the phone, the phone sitting on the table doing nothing, etc. there is nothing that always makes it happen. pretty much happens whenever. after one of these black screen of death times where i popped the battery, the phone wouldnt turn back on. i got a new battery from tmo. didnt work. i got a new handset. so now i have a new battery, a new handset, a new charger, purchased a new sd card, have wiped the system clean (it even rebooted when i took the new headset out of the box and was in the initial setup!) using the in-phone erase options and the hard reset. everything but the sim card has been replaced and flushed. i use the sim in another phone (a loaner t mobile gave me) and have no issues. does anyone have ANY ideas? i feel i have tried everything and i refuse to beleive i am cursed. i talked to tmo, they said that they would send me a new headset, i told them i already got a new one and its not that, they then told me cupcake would fix this and it was a software issue. i manually installed cupcake, it worked fine for a min, then the exact same patterns of rebooting. please. help me. i have scoured the internet for answers and no one has a definite one, i just see tons of people when the same issues.